3. Optical Performance
3.1 Insertion Loss
• MTP Connector (IEC 61300-3-34)
￮ Single-mode (APC 8°): Standard ≤0.75dB (max), ≤0.50dB (typical); Elite ≤0.35dB (max), ≤0.20dB (typical)
￮ Multimode (PC): Standard ≤0.6dB (max), ≤0.50dB (typical); Elite ≤0.35dB (max), ≤0.20dB (typical)
• LC/SC/FC/ST Connectors (IEC 61300-3-6)
￮ Single-mode & Multimode: ≤0.3dB
3.2 Return Loss
• MTP Connector
￮ Single-mode (APC 8°): ≥60dB
￮ Multimode (PC): ≥25dB
• LC/SC/FC/ST Connectors
￮ Single-mode: APC ≥60dB; UPC ≥50dB
￮ Multimode: ≥35dB
3.3 Mechanical Durability
• Durability: ≤0.3dB typical change after 200 matings
• Interchangeability: ≤0.2dB
• Tensile strength: >70N
• Operating temperature: -40°C to +85°C
4. Cable Parameters (24F Microfiber Cable)
Fiber Count | Outer Diameter | Tensile Strength (Min) | Crush Load (Min) | Minimum Bending Radius |
24 cores | 3.0±0.15mm | Short-term: 180N; Long-term: 90N | Short-term: 500N/100mm; Long-term: 150N/100mm | Static: 10D; Dynamic: 20D |
5. Structure Types
Type 1: MTP to 24×LC Simplex
• Fanout leg OD: 2.0mm or 0.9mm
• Fanout length: 0.5m
• MTP gender: Female / Male
• Main cable OD: 3.0mm
Type 2: MTP to 12×LC Duplex
• Fanout leg OD: 2.0×4.1mm or 0.9mm
• Fanout length: 0.5m
• MTP gender: Female / Male
• Main cable OD: 3.0mm
Type 3: MPO to 6×LC Uni-boot
• Fanout leg OD: 2.0mm or 3.0mm
• Fanout length: 0.5m
• MPO gender: Female / Male
• Main cable OD: 3.0mm
6. End-Face Geometry (3D Interference Index)
6.1 MTP/MPO End-Face (IEC 61300-3-30)
Parameter | Min | Max |
ROC-X (ABS) | 2000mm | — |
ROC-Y (ABS) | 50mm | — |
Angle-X | -0.2° | -0.2° |
Angle-Y (APC) | 7.85° | 8.15° |
Angle-Y (PC) | -0.2° | -0.2° |
Fiber height | 1000nm | 3500nm |
Max DH (All Fiber) | -300nm | 300nm |
DH (Adjacent) | -300nm | 300nm |
DH (Average Fiber) | -300nm | 300nm |
Core Dip (Multimode) | -200nm | 300nm |
6.2 LC/SC/FC/ST End-Face
Parameter | Connector | PC End-face | APC End-face |
Radius of Curvature | SC/FC/ST | 10–25mm | 5–12mm |
Radius of Curvature | LC/MU | 7–25mm | 5–15mm |
Apex Offset | All | ≤50μm | — |
Fiber Spherical Height | All | ±100nm | — |
Angular Offset | All | — | 8°±0.5° |
7. End-Face Quality (IEC 61300-3-35:2015)
7.1 Single-mode LC/SC/FC/ST
Zone | Range (μm) | Scratches | Defects |
A (Core) | 0–25 | None | None |
B (Cladding) | 25–115 | None | None |
C (Adhesive) | 115–135 | None | None |
D (Contact) | 135–250 | None | None |
E (Ferrule Rest) | — | None | None |
7.2 Multimode LC/SC/FC/ST
Zone | Range (μm) | Scratches | Defects |
A (Core) | 0–65 | None | None |
B (Cladding) | 65–115 | None | None |
C (Adhesive) | 115–135 | None | None |
D (Contact) | 135–250 | None | None |
E (Ferrule Rest) | — | None | None |
8. Typical Applications
• High-density data center cabling
• 10G/40G/100G Ethernet interconnection
• 100GBASE-SR10 CXP/CFP & 100GBASE-LR4 links
• Fiber to the building (FTTB)
• Internal equipment optical connections
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